The explorer is running in 'regtest' mode. This saves disk space, but there is limited data.
The code for this application can be found at github.com/pdxrod/blockchain_explorer.

home    blocks

Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 1510
Hash: 0f2e0896e739783d17b12167d01d33cafa58c24cbb84981c5eb69b1558d4483f
Previous block: 7458eaa2ba99b2eaf6db06351ce97fecf5a4e3904dfab5ab5b044d9f3b132be9
Next block: 5997e478eaea49f17ed82b26624aa41fecb677b07444b959f7164b659448202c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697659
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 983c6c1f5fd1d3094fd8ed3c1955823ffbcc60c6392e38c0d7622720b11644ba
Median time: 1718697658
Difficulty: 4.656542373906925e-10
Confirmations: 734
Chainwork: 0000000000000000000000000000000000000000000000000000000000000bce
Bits: 207fffff